Creel tension control mechanism of carbon fiber spreading warping machine

By introducing a yarn tension control mechanism into the carbon fiber warping machine, and using a magnetic powder brake and pressure sensor in conjunction with a central processor, the tension of the carbon fiber yarn at the unwinding point of the yarn bobbin is precisely adjusted, solving the problem of uneven yarn tension and ensuring that the yarn tension meets the process requirements.

CN224378357UActive Publication Date: 2026-06-19CHANGZHOU RUN FENG YUAN TEXTILE MASCH MFG CO LTD
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Patent Information

Application Number
CN202521184421.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-11
Publication Date
2026-06-19
Estimated Expiration
2035-06-11

AI Technical Summary

Technical Problem

The existing yarn frame structure of carbon fiber spreading and warping machines results in uneven tension of the carbon fiber yarn at each unwinding point of the yarn bobbin, which fails to meet the process requirements, and the tension bar cannot be adjusted.

Method used

A yarn tension control mechanism is adopted, including a yarn bobbin support frame, a support frame mounting base, a magnetic powder brake, and a rotating shaft. Combined with a pressure sensor and a central processing unit, it can detect and adjust the tension of the carbon fiber yarn at the unwinding point of each yarn bobbin in real time, and control the speed of the yarn bobbin through the magnetic powder brake to achieve the process specifications.

Benefits of technology

It enables precise adjustment of the tension of carbon fiber yarn at each unwinding point of the yarn bobbin, ensuring that the tension meets the process requirements. It has a simple structure, is easy to install, has a fast response speed, and is low in cost.

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Abstract

The utility model discloses a creel tension control mechanism of a carbon fiber spreading and warping machine, which comprises a creel and a plurality of spools, and further comprises a spool bearing frame, a bearing frame mounting seat, a magnetic powder brake and a rotating shaft, one end of the rotating shaft penetrates into a rotor of the magnetic powder brake and is in interference fit connection with the rotor or is connected with the rotor through a key groove and key block structure, and the other end of the rotating shaft is connected with the spool. The other end of the rotating shaft is sleeved with the bearing frame front cylinder, the yarn cylinder is installed on the bearing frame front cylinder, the rotating shaft body is sleeved with the installing base rear cylinder, the installing base rear cylinder is fixedly connected with the rotating shaft body through a first set screw, the bearing frame rear cylinder is inserted into an inner hole of the installing base front cylinder, and the bearing frame rear cylinder and the installing base front cylinder are fixedly connected through a second set screw. A guide roller is arranged at the carbon fiber yarn unwinding position of each yarn drum, and a pressure sensor is installed at one end or two ends of each guide roller. According to the utility model, each spool can be independently controlled, the tension of the carbon fiber yarns at the backing-off position of each spool can be adjusted, and the tension of the carbon fiber yarns at the backing-off position of each spool is ensured to meet the requirements of process regulations.
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